5-Amino-pyrazoles: potent reagents in organic and medicinal synthesis

A Shaabani, MT Nazeri, R Afshari - Molecular diversity, 2019 - Springer
Amino-pyrazoles have proven to be a class of fascinating and privileged organic tools for the
construction of diverse heterocyclic or fused heterocyclic scaffolds. This review presents …

Advances in the chemical and biological diversity of heterocyclic systems incorporating pyrimido [1, 6-a] pyrimidine and pyrimido [1, 6-c] pyrimidine scaffolds

KM Elattar, BD Mert, M Monier, A El-Mekabaty - RSC advances, 2020 - pubs.rsc.org
Heterocycles incorporating a pyrimidopyrimidine scaffold have aroused great interest from
researchers in the field of medical chemistry because of their privileged biological activities; …

Synthesis and antitumor activity of some new pyrazolo [1, 5-a] pyrimidines

AS Hassan, MF Mady, HM Awad, TS Hafez - Chinese Chemical Letters, 2017 - Elsevier
Abstract New series of pyrazolo [1, 5-a] pyrimidine derivatives 7a–i, 11a–c and Schiff bases
13a–c were synthesized and screened for their in vitro antitumor activity against three …

Synthesis and anti-tumor activities of some new pyridines and pyrazolo [1, 5-a] pyrimidines

OM Ahmed, MA Mohamed, RR Ahmed… - European journal of …, 2009 - Elsevier
Cyclocondensation of cyanoacetamide, cyanothioacetamide and 3-aminopyrazols with
sodium salt of 3-hydroxy-1-(2-naphthyl) prop-2-en-1-one gives pyridin-2-one, pyridin-2 (1H) …

Trifluoromethyl-substituted aryldiazenyl-pyrazolo [1, 5-a] pyrimidin-2-amines: Regioselective synthesis, structure, and optical properties

FS Stefanello, YG Kappenberg, JN Araujo… - Journal of Fluorine …, 2022 - Elsevier
This paper describes for the first time an efficient approach to synthesize a novel
trifluoromethylated heterocyclic system of seventeen examples of substituted …

Design, synthesis, docking, and antimicrobial evaluation of some novel pyrazolo[1,5-a] pyrimidines and their corresponding cycloalkane ring-fused derivatives as …

AEM Abdallah, GH Elgemeie - drug design, development and …, 2018 - Taylor & Francis
Background Over the years, pyrazolopyrimidine derivatives have been recognized as
having antimicrobial activities. Recently, we reported different synthetic methods to prepare …

Convenient method for synthesis of various fused heterocycles via utility of 4-acetyl-5-methyl-1-phenyl-pyrazole as precursor

SM Gomha, AS Shawali… - Turkish Journal of …, 2014 - journals.tubitak.gov.tr
A new, less expensive, solvent-free procedure was developed for the synthesis of some new
derivatives of various fused heterocyclic ring systems, namely azolopyridazine …

Compounds useful as inhibitors of ATR kinase

N Ahmad, D Boyall, JD Charrier, C Davis… - US Patent …, 2016 - Google Patents
2015-09-14 Assigned to VERTEX PHARMACEUTICALS (EUROPE) LIMITED reassignment
VERTEX PHARMACEUTICALS (EUROPE) LIMITED ASSIGNMENT OF ASSIGNORS …

New route to the synthesis of Benzamide-Based 5-aminopyrazoles and their fused heterocycles showing remarkable antiavian influenza virus activity

AMS Hebishy, HT Salama, GH Elgemeie - ACS omega, 2020 - ACS Publications
This study describes a new route to the synthesis of novel benzamide-based 5-
aminopyrazoles and their corresponding pyrazolo [1, 5-a] pyrimidine and pyrazolo [5, 1-c][1 …

Efficient Synthesis and Antimicrobial Evaluation of New Azolopyrimidines‐Bearing Pyrazole Moiety

AO Abdelhamid, SM Gomha… - Journal of Heterocyclic …, 2019 - Wiley Online Library
Sodium salt of 3‐hydroxy‐1‐(1‐aryl‐5‐methylpyrazolyl) propenone derivatives was used as
a precursor for synthesis of various fused azolopyrimidine ring systems as …